I watched an Avanti take off from Deauville last week.
Beautiful looking aircraft but it used not much less runway (well about 500m less) to take off, than the A319 that arrived before it, used in landing!
Difficult to see what real advantages the Cobalt offers over the exisiting competition, let alolne a variety of designs not presently in production but which would notionally be available.
To choose a relatively 'difficult' basic configuration which would doubtless need considerable development (think Beech Starship and not so much its production issues but the flight testing with linkages between canard and flaps etc) seems to be setting a steep challenge.